Hi Ralf,
sorry to bother you again,
I've download the new beta version: *OpenMPI-1.5.3*
and it seems to me that the bug fix for spawn_multiple with more than 128
cpus is not there,
am I correct ?
Thanks,
Federico.
2011/3/14 Ralph Castain
> You can try running it as suggested here:
>
> http:/
You can try running it as suggested here:
http://www.open-mpi.org/faq/?category=running#mpirun-prefix
On Mar 14, 2011, at 12:21 PM, Federico Golfrè Andreasi wrote:
>
> Thank you Jeff,
>
> my fault :( I didn't find that a link of that file was also mentioned in the
> website page.
> I was abl
Thank you Jeff,
my fault :( I didn't find that a link of that file was also mentioned in the
website page.
I was able to build from the trunk the revision 24472.
But when I try to run my program I still receive the error that Ralph told
me is dued to version mismacth.
How can I check which openmp
This usually means you didn't install the GNU auto tools properly.
Check the HACKING file in the top-level directory for specific instructions on
how to install the Autotools.
On Mar 10, 2011, at 7:50 AM, Federico Golfrè Andreasi wrote:
>
> Hi Ralph,
>
> I did a chekout of the 22794 revision
Hi Ralph,
I did a chekout of the 22794 revision with svn.
I've download and installed (with the default configuration) in my /home
folder:
- m4 version 1.4.16
- autoconf version 2.68
- automake version 1.11
- libtool version 2.2.6b
I've modifyed my CSHRC to export the following:
setenv PATH
/home/
Hi Ralph,
I've did some more tests, hope this can help.
*Using OpenMPI-1.5*
- The program works correctly doing a multiple spawn up to 128 cpus.
- When spawning to more than 129 cpus it hungs during the spawn.
I've discovered that just before the spwaning all the processes liying on
one node
On Mar 7, 2011, at 3:24 AM, Federico Golfrè Andreasi wrote:
> Hi Ralph,
>
> thank you very much for the detailed response.
>
> I have to apologize I was not clear: I would like to use the
> MPI_spawn_multiple function.
Shouldn't matter - it's the same code path.
> (I've attached the example
Hi Ralph,
thank you very much for the detailed response.
I have to apologize I was not clear: I would like to use the
MPI_spawn_multiple function.
(I've attached the example program I use) .
In any case I tryed your test program, just compling it with:
/home/fandreasi/openmpi-1.7/bin/mpicc loop_
FWIW: just tried current trunk on a multi-node cluster, and the loop_spawn test
worked fine there too.
On Mar 5, 2011, at 11:05 AM, Ralph Castain wrote:
> Hi Federico
>
> I tested the trunk today and it works fine for me - I let it spin for 1000
> cycles without issue. My test program is esse
Hi Federico
I tested the trunk today and it works fine for me - I let it spin for 1000
cycles without issue. My test program is essentially identical to what you
describe - you can see it in the orte/test/mpi directory. The "master" is
loop_spawn.c, and the "slave" is loop_child.c. I only teste
Hi Ralph,
I'm getting stuck with spawning stuff,
I've downloaded the snapshot from the trunk of 1st of March (
openmpi-1.7a1r24472.tar.bz2),
I'm testing using a small program that does the following:
- master program starts and each rank prints his hostsname
- master program spawn a slave progr
Hi Ralf,
I've tested spawning with the OpenMPI 1.5 release but that fix is not there.
Are you sure you've added it ?
Thank you,
Federico
2010/10/19 Ralph Castain
> The fix should be there - just didn't get mentioned.
>
> Let me know if it isn't and I'll ensure it is in the next one...but I'd
The fix should be there - just didn't get mentioned.
Let me know if it isn't and I'll ensure it is in the next one...but I'd be very
surprised if it isn't already in there.
On Oct 19, 2010, at 3:03 AM, Federico Golfrè Andreasi wrote:
> Hi Ralf !
>
> I saw that the new realease 1.5 is out.
>
Hi Ralf !
I saw that the new realease 1.5 is out.
I didn't found this fix in the "list of changes", is it present but not
mentioned since is a minor fix ?
Thank you,
Federico
2010/4/1 Ralph Castain
> Hi there!
>
> It will be in the 1.5.0 release, but not 1.4.2 (couldn't backport the fix).
>
Hi there!
It will be in the 1.5.0 release, but not 1.4.2 (couldn't backport the fix). I
understand that will come out sometime soon, but no firm date has been set.
On Apr 1, 2010, at 4:05 AM, Federico Golfrè Andreasi wrote:
> Hi Ralph,
>
>
> I've downloaded and tested the openmpi-1.
Hi Ralph,
I've downloaded and tested the openmpi-1.7a1r22817 snapshot,
and it works fine for (multiple) spawning more than 128 processes.
That fix will be included in the next release of OpenMPI, right ?
Do you when it will be released ? Or where I can find that info ?
Thank you,
http://www.open-mpi.org/nightly/trunk/
I'm not sure this patch will solve your problem, but it is worth a try.
On Mar 1, 2010, at 3:51 AM, Federico Golfrè Andreasi wrote:
> Ok, thank you !
>
> where can I found instructions for download the developer's copy of OpenMPI,
> if it is possibile?
>
Ok, thank you !
where can I found instructions for download the developer's copy of OpenMPI,
if it is possibile?
I'd like to test it just to be sure that the problem is solved, with that
patch.
Can you let me know where that patch is available?
Thank you very much,
Federico
2010/2/27 Ralph
Okay, thanks. It's the same problem as the other person encountered. Basically,
it looks to OMPI as if you are launching > 128 independent app contexts, and
our arrays were limited to 128.
He has provided a patch that I'll review (couple of things I'd rather change)
and then apply to our develo
Hi,
the program is executed as one application on 129 cpus defined by the
hostfile.
Than rank 0, inside the code, execute another program with 129 cpus, with a
one-to-one relation, rank0 of the spawined process runs on the same host of
rank0 of the spawning one and so on...
Excuting the spawning p
Since another user was doing something that caused a similar problem, perhaps
we are missing a key piece of info here. Are you launching one app_context
across 128 nodes? Or are you launching 128 app_contexts, each on a separate
node?
On Feb 26, 2010, at 10:23 AM, Federico Golfrè Andreasi wrot
I'm doing some tests and it seems that is not able to do a spawn multiple
with more than 128 nodes.
It just hold, with no error message.
What do you think? What can I try to understand the problem.
Thanks,
Federico
2010/2/26 Ralph Castain
> No known limitations of which we are aware...the
No known limitations of which we are aware...the variables are all set to
int32_t, so INT32_MAX would be the only limit I can imagine. In which case,
you'll run out of memory long before you hit it.
2010/2/26 Federico Golfrè Andreasi
> HI !
>
> have you ever did some analysis to understand if t
HI !
have you ever did some analysis to understand if there is a limitation in
the number of nodes usable with OpenMPI-v1.4 ?
Using also the functions MPI_Comm_spawn o MPI_Comm_spawn_multiple.
Thanks,
Federico
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